Robtex

Up: 212.33.240.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 212.33.244.0/23
Down right: 212.33.246.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.33.244.18	A+PTR	ums.perm.ru
212.33.244.23	PTR	mx.cpm.perm.ru
212.33.244.56	PTR	212x33x244x56.static-business.perm.ertelecom.ru
212.33.244.100	PTR	212x33x244x100.static-business.perm.ertelecom.ru
212.33.244.109	PTR	tdskb.ru
212.33.244.109	PTR	ns2.hosting-perm.ru
212.33.244.122	PTR	dids-gw.perm.ertelecom.ru
212.33.244.139	A+PTR	mail.permprofi.ru
212.33.244.170	A+PTR	mail.ukey.biz
212.33.244.170	A	mail.u-key.biz
212.33.244.186	A	mail.tdyperm.ru
212.33.244.186	A	tdyperm.ru
212.33.244.187	PTR	ural-torg.ru
212.33.244.214	A+PTR	mail.ssplink.ru
212.33.244.231	A+PTR	mail.ucomperm.ru
212.33.244.240	PTR	212x33x244x240.static-business.perm.ertelecom.ru
212.33.244.240	A	sintez.perm.ru
212.33.244.240	A	perun.perm.ru
212.33.244.255	PTR	pppoe-244-255.perm.ertelecom.ru
212.33.245.60	A+PTR	mail.tushin.ru
212.33.245.60	A	tushin.ru
212.33.245.60	A	xn--h1aknez.xn--p1ai
212.33.245.71	A	la2boom.ru
212.33.245.78	PTR	212x33x245x78.static-customer.perm.ertelecom.ru
212.33.245.78	A	mail.esdbo.ru
212.33.245.92	A	dragonavt.com
212.33.245.99	PTR	fsb.ru
212.33.245.101	A	forize.ru
212.33.245.102	PTR	212x33x245x102.static-customer.perm.ertelecom.ru
212.33.245.102	A	mail.aga-pi.com
212.33.245.102	A	ns2.asc-com.ru
212.33.245.118	PTR	212x33x245x118.static-customer.perm.ertelecom.ru
212.33.245.118	A	mail.reklama59.perm.ru
212.33.245.125	PTR	212x33x245x125.static-customer.perm.ertelecom.ru
212.33.245.125	A	yarosperm.com
212.33.245.125	A	mx01.factoriaplus.com
212.33.245.131	PTR	212x33x245x131.static-customer.perm.ertelecom.ru
212.33.245.131	A	ivanov-anton.ru
212.33.245.131	A	choo-do.ru
212.33.245.143	PTR	pppoe-212-33-245-143.ertelecom.ru
212.33.245.145	PTR	sere.ga
212.33.245.158	PTR	212x33x245x158.static-customer.perm.ertelecom.ru
212.33.245.162	PTR	remote.uipumori.ru
212.33.245.162	PTR	www.remote.uipumori.ru
212.33.245.170	PTR	212x33x245x170.static-customer.perm.ertelecom.ru
212.33.245.170	A	mail.gvict.ru
212.33.245.170	A	gvict.ru
212.33.245.200	PTR	gw-ert.nvnet.perm.ru
212.33.245.200	A	nvnet.perm.ru
212.33.245.200	A	hruum.ru
212.33.245.201	PTR	212x33x245x201.static-customer.perm.ertelecom.ru
212.33.245.201	A	mx.ser-genri.ru
212.33.245.205	PTR	212x33x245x205.static-customer.perm.ertelecom.ru
212.33.245.210	A+PTR	luc.perm.ru
212.33.245.210	A	mail.luc.perm.ru
212.33.245.210	A	ns.luc.perm.ru
212.33.245.214	A	chebykin.org
212.33.245.245	PTR	212x33x245x245.static-customer.perm.ertelecom.ru
212.33.245.245	A+PTR	amelin.info
212.33.245.255	PTR	pppoe-245-255.perm.ertelecom.ru
212.33.246.38	PTR	212x33x246x38.static-business.perm.ertelecom.ru
212.33.246.40	PTR	212x33x246x40.static-business.perm.ertelecom.ru
212.33.246.46	A+PTR	lyceum8perm.ru
212.33.246.46	A	www.lyceum8perm.ru
212.33.246.49	A	school25.perm.ru
212.33.246.57	PTR	212x33x246x57.static-business.perm.ertelecom.ru
212.33.246.57	A	mail.s146.perm.ru
212.33.246.57	A	mail.s146.ru
212.33.246.62	PTR	212x33x246x62.static-business.perm.ertelecom.ru
212.33.246.62	A	school9.perm.ru
212.33.246.62	A	www.sicamp.ru
212.33.246.72	A+PTR	hselyceum.perm.ru
212.33.246.72	A	mx1.hselyceum.perm.ru
212.33.246.76	PTR	mail.lyceum1.perm.ru
212.33.246.76	A	ns.lyceum1.perm.ru
212.33.246.79	PTR	212x33x246x79.static-business.perm.ertelecom.ru
212.33.246.80	PTR	212x33x246x80.static-business.perm.ertelecom.ru
212.33.246.80	A	mail.licey3.perm.ru
212.33.246.123	PTR	212x33x246x123.static-business.perm.ertelecom.ru
212.33.246.124	PTR	212x33x246x124.static-business.perm.ertelecom.ru
212.33.247.7	A+PTR	mail2.paigk.ru
212.33.247.10	PTR	permenergo.ru
212.33.247.15	A+PTR	agora-perm.ru
212.33.247.15	A	mail.agora-perm.ru
212.33.247.42	PTR	mail.forwardvelo.ru
212.33.247.44	A+PTR	mail.irenperm.ru
212.33.247.80	A	newstar.perm.ru
212.33.247.88	PTR	mail.br-rim.ru
212.33.247.94	A	mail.forpostperm.ru
212.33.247.100	PTR	212x33x247x100.static-business.perm.ertelecom.ru
212.33.247.100	A	ezhario.ru
212.33.247.100	A	motobolt.ru
212.33.247.104	A+PTR	main.prominform.com
212.33.247.117	A+PTR	prepress.raid.ru
212.33.247.117	A	mail.prepress.raid.ru
212.33.247.176	A	mail.gb21perm.ru
212.33.247.185	PTR	212x33x247x185.static-business.perm.ertelecom.ru
212.33.247.185	A	kd-group.ru
212.33.247.185	A	tevk-seti.ru
212.33.247.200	PTR	212x33x247x200.static-business.perm.ertelecom.ru
212.33.247.200	A	mail.mara.ru
212.33.247.204	A	www.astron.ru
212.33.247.206	PTR	kp-perm.ru
212.33.247.206	A	kpmail1.dwins.ru
212.33.247.229	PTR	gifts.perm.ru
212.33.247.238	PTR	mail.er-capital.ru
212.33.247.238	A	mail.school.perm.ru
212.33.247.238	A	mail.d2lab.ru